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St Cybi's Well is a medieval holy well located in Wales and protected by Cadw as a scheduled monument under reference CN037. The well sits upon Llanvirn Rocks, an undifferentiated formation of the Whiterock period composed of mudstone, siltstone and sandstone. These ancient sedimentary deposits create a stable geological foundation that would have made the site reliable for water collection and retention in medieval times.
Holy wells such as this were focal points of spiritual devotion and community life throughout the medieval period in Wales. They were typically associated with local saints—in this case Saint Cybi—and became destinations for pilgrimage and ritual practice. The well's position on permeable Whiterock strata would have ensured a consistent water supply, essential both for its practical use and its religious significance.
The monument remains an important testament to Wales's medieval religious landscape and the enduring relationship between communities and their sacred natural resources. Its protection by Cadw reflects the archaeological and cultural value of such sites in understanding medieval Welsh society and spiritual practices. The well survives as evidence of centuries-old traditions of veneration and the role of holy wells as centres of faith and healing.
St Cybi's Well is a scheduled monument protected by Cadw under reference CN037. View the official record →
St Cybi's Well is a medieval holy well located in Wales and protected by Cadw as a scheduled monument under reference CN037.
St Cybi's Well dates from the medieval period, and is classified as a holy well. It is one of over 32,000 scheduled monuments protected across the UK.
St Cybi's Well is a Scheduled Ancient Monument, legally protected by Cadw — the body responsible for designating and safeguarding heritage sites in Wales. The official designation reference is CN037.
Several scheduled monuments lie within 10 km, including Cross-Incised Stone in Llangybi Churchyard (0.1 km), Carn Pentyrch Camp (0.6 km), Four Crosses Standing Stone (3.5 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of St Cybi's Well's history, each drawn from the record and mapped to the exact spot:
Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.
St Cybi's Well stands on Llanvirn Rocks (Undifferentiated), bedrock that formed in the Whiterock. The rock here is mudstone, siltstone and sandstone.